<html>

<head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <title>记住密码提示框</title>
    <style>
        body,
        input,
        p {
            margin: 0;
            padding: 0;
        }

        body {
            font: 12px/1.5 Tahoma;
        }

        #outer {
            width: 200px;
            margin: 10px auto;
        }

        input {
            margin-right: 5px;
            vertical-align: middle;
        }

        #tips {
            padding: 5px;
            margin-top: 5px;
            background: #ffefa4;
            border: 1px solid #f90;
            display: none;
        }
    </style>
    <script>
        window.onload = function () {
            var oTips = document.getElementById("tips");
            var oLabel = document.getElementsByTagName("label")[0];
            oLabel.onmouseover = function () {
                oTips.style.display = "block"
            };
            oLabel.onmouseout = function () {
                oTips.style.display = "none"
            }
        }
    </script>
</head>

<body>
    <div id="outer">
        <label><input type="checkbox" />两周内自动登陆</label>
        <div id="tips">为了您的信息安全，请不要在网吧或公用电脑上使用此功能！</div>
    </div>
</body>

</html>